RbSnX3 (X = Cl, Br, I): promising lead-free metal halide perovskites for photovoltaics and optoelectronics

This work summarizes that RbSnX 3 (X = Cl, Br, I) exhibits remarkable ductility and absorption in the ultraviolet (UV) region of the electromagnetic spectrum compared to those of CsBX 3 (B = Ge, Sn, Pb; X = Cl, Br, I) metal halide perovskites.